Distance Calculation: Lightning and Thunder
This problem requires calculating the distance to a storm based on the time delay between seeing lightning and hearing thunder.
Understanding the Physics
Light travels extremely fast ($3 \times 10^8 \text{ m/s}$), so the time it takes to see the lightning flash is negligible. The $10\text{ s}$ time difference is almost entirely due to the time it takes for the sound (thunder) to travel the distance from the storm.
Distance Formula
The distance ($d$) can be calculated using the formula:
$ d = v \times t $
Where $v$ is the speed and $t$ is the time.
Applying the Values
For this calculation, we use the speed of sound and the given time elapsed:
- Speed of sound ($v_s$): $330\text{ m/s}$
- Time elapsed ($t$): $10\text{ s}$
Calculating the Distance
Substitute the values into the formula:
$ d = 330\text{ m/s} \times 10\text{ s} $
$ d = 3300\text{ m} $
Conclusion
The storm is approximately $3300\text{ m}$ away.
Important Questions from Physics
Two balls, A and B, are thrown simultaneously, a vertically upward with a speed of 20 m/s from the ground and B vertically downward from a height of 40 m with the same speed and along the same line of motion. At what points do the two balls collide by taking acceleration due to gravity as 9.8 m/s 2?
On the basis of which principle does soap clean surfaces?
Which one of the following devices is used to measure atmospheric pressure?
Which one of the following energy is stored in the links between the atoms?
Who among the following has explained the phenomenon of photoelectric effect?
